Lake Trout Ecosystems in a Changing Environment - Chapter 13 pps
Lake Trout Ecosystems in a Changing Environment - Chapter 13 pps
... uptake by lake trout, Salvelinus
namaycush, relative to age, growth, and diet in Tadenac Lake with comparative data from
other Precambrian Shield lakes, Canadian Journal of Fisheries and Aquatic ... invaded
lakes, MacDonald Lake and Clean Lake, revealed the food web consequences of bass
impacts. In MacDonald Lake, littoral prey fish populations declined dramatically follow-
ing b...
Lake Trout Ecosystems in a Changing Environment - Chapter 9 ppsx
... pollutants may be increasing
Hg concentrations in lake trout in small Boreal lakes. Experimental lake acidification was
observed to increase Hg in fish (Wiener et al., 1990) and Hg in fish in lakes ... to lake area in a study where the ratio of
catchment to lake area was not kept constant as in Bodaly et al. (1993). Lakes with pro-
portionately larger catchment areas...
Lake Trout Ecosystems in a Changing Environment - Chapter 11 ppsx
... open-water lake trout fisheries
occurred on Algonquin Park lakes in the late 1940s and early 1950s. Martin (1954) found
that in lakes where lake trout mature at a young age (5 years) and a small ... Anglers with tags have the choice of releasing a fish or keeping and tagging it and
applying it to their seasonal or annual quota.
An individual tag-and-quota system for lake...
Lake Trout Ecosystems in a Changing Environment - Chapter 1 pptx
... 8,000 years ago. Lake Agassiz was impounded between
the retreating ice margins and the Manitoba Escarpment — the present-day remnants
including Lakes Manitoba, Winnipeg, Dauphin, and Winnipegosis. ... banksiana) and red pine (Pinus
resinosa); poorly drained sites are characterized by black and white spruce, balsam fir,
tamarack (Larix laracina), eastern red cedar (Juniperus virginiana),...
Lake Trout Ecosystems in a Changing Environment - Chapter 2 doc
... Superior basin, and finally eastward into Lake Barlow-Ojib
-
way (Mandrak and Crossman, 1992). Lake Barlow-Ojibway extended across northeastern
Ontario and northwestern Quebec, and drained into the ... variants have been
identified in Shield lake trout populations, including black fins (e.g., Redstone Lake) and
pale or dark background coloration (e.g., Lost Dog Lake and Ca...
Lake Trout Ecosystems in a Changing Environment - Chapter 3 doc
... propose stocking all available hatchery-reared lake trout allocated to a lake in a
given year into one selected locality that has an abundance of spawning habitat, leaving
other areas of the lake unstocked. ... obstacles faced by lake trout in the Great Lakes.
Approximately 330 million yearling and fingerling lake trout were released into the Great
Lakes from 1950 to 2...
Lake Trout Ecosystems in a Changing Environment - Chapter 5 pot
... spawning areas in the littoral zones of Lake aux Sables using a tarp
(Benoît and Legault, 2002) led lake trout to abandon these areas and reproduce in the
artificial deep-water spawning areas ... occurring after lake trout spawning. Draw-
downs occurred before lake spawning on 39 lakes and during spawning on 14 lakes (some
lakes had drawdowns occurring at more than one time)...
Lake Trout Ecosystems in a Changing Environment - Chapter 6 ppt
... 1-m increase in transparency would result in an increase in Z
10
of
ca. 1 m. Following a 2-m increase in transparency, optimal habitat volumes in the same
lakes would be reduced by between 8 and ... trout habitat, or any other class of habitat.
A
0
© 2004 by CRC Press LLC
chapter six
Lake trout (Salvelinus namaycush)
habitat volumes and boundaries
in Canadian Shiel...
Lake Trout Ecosystems in a Changing Environment - Chapter 7 ppt
... maximum and (b) mean depths between 1892 lake trout lakes and 436
other non lake trout lakes with available data.
Lake Trout lakes Non -Lake Trout Lakes
Maximum Depth (m)
0-1 0
1 0-2 0
2 0-3 0
3 0-4 0
4 0-5 0
5 0-6 0
6 0-7 0
7 0-8 0
8 0-9 0
9 0-1 00
10 0-1 10
50
40
30
20
10
0
Percent ... concentration distributions in 293 lake trout lakes and 927 lak...
Lake Trout Ecosystems in a Changing Environment - Chapter 8 doc
... Molot, L .A. , 2003, Predicting optimal habitat boundaries for lake trout
(Salvelinus namaycush Walbaum) in Canadian Shield lakes, Canadian Journal of Fisheries and
Aquatic Sciences (in press).
Dillon, ... long-term integrity of lake
trout habitat will require the management of activities in the catchments of lakes that
affect DOC inputs to lakes. Climate change and acid rain als...
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